The same age as you are wherever it is that you live.
Since a year on dwarf planet Eris is about 557 Earth years, if you were 11 years old on Earth, you would be about 0.02 years old on Eris.
The emperor of Rome live many centuries ago so even if he lived to be an old man, he would not have lived until today. No man has lived to be 1,800 years old.
Depending on where Eris is in its orbit, it can take anywhere from 16-29 years to get to Eris from Earth.
You would be about 11 and a half days old.
Depends on the sizeof the person, but: 100 earth pounds = 9 Eris pounds.
A person who has lived for a million years would be a million years old.
No. Eris was only discovered in 2005. Even if a spacecraft was launched for it right then, it would not have gotten there yet. So far there are no missions to Eris.
The dwarf planet Eris probably has no atmosphere to speak of. Eris orbits beyond Neptune, in the bitter cold distances from the Sun; most gasses would condense and freeze, and the tenuous vapors that might remain would be too light to be bound by Eris' weak gravity.
2,740
Well, Eris in Greek mythology, is the goddess of Chaos, Discord, and Strife. It has never been said what Eris' sacred animal would be, but I think it would be something along the lines of a snake or a fox.
Not very old in Pluto years.
if you were 14 and lived on Jupiter for its year, You would be about 26 when Jupiter completed its revolution